Transgenosis in ornamental plants
2000
Pavingerova, D. (Akademie Ved, Ceske Budejovice (Czech Republic). Ustav Molekularni Biologie Rostlin)
The genetic transformation of ornamental crops considerably enhances the existing efforts of traditional and in vitro breeders. These now molecular techniques provide opportunities to alter specific characteristics such as plant from, colour, and pest and disease resistance. The most important application of genetic engineering technologies to the ornamental plants is likely to be in the area of lower colour. In most plants the colour of the lower is determined by flavonoids which are provided by phenylpropanoid pathway. There are two ways of manipulation: blocking flavonid biosynthesis by antisense genes and transfer of new genes into plant genome. The plants with antisense ACC synthase transgene have a reduced senescence response leading to increased vase life. Agrobacterium-mediated gene transfer is the preferred transformation technique in use for ornamental plants.
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